tag:blogger.com,1999:blog-8807546545325587932.post2376144308271071922..comments2016-12-09T01:56:10.650-05:00Comments on The MEP BIM/CAD Engineer: Getting in the Flow with Revit HVACDavid Buttshttp://www.blogger.com/profile/11883940638705490710noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8807546545325587932.post-55575431695723064902013-10-24T14:32:22.784-04:002013-10-24T14:32:22.784-04:00I know this is an older blog post, but I am having...I know this is an older blog post, but I am having a damned of a time getting the flow of my air terminal&#39;s demand flow upstream past the VAV box and to the air handler. This chain seems broken.<br /><br />Air Terminal, 50 CFM<br />Air Terminal, 50 CFM<br /><br />to VAV calculated: 100 CFM<br />to AHU? 0 CFM?<br /><br />How do I configure the connectors in the VAV box in such a way to make this possible for a simple VAV system without return air or hydronic connections (simple electric heat with an in and out)?<br /><br />It&#39;s driving me nuts!Adamhttp://www.blogger.com/profile/03709643493552824274noreply@blogger.comtag:blogger.com,1999:blog-8807546545325587932.post-23219518208741049362013-04-06T15:27:57.808-04:002013-04-06T15:27:57.808-04:00You have to have at least one target to define a s...You have to have at least one target to define a system - the source cannot define the system. When you select a source object, you&#39;re really using it as a target when you create the system that way. You can add a source at anytime after you define the system, but my method is to pick all the components and define the system at once, since it&#39;s easier than one clicking elements using Add to System. IT&#39;s actually shorter to select all the items you want as targets in a system, then add the circuit, pipe or duct system.David Buttshttp://www.blogger.com/profile/11883940638705490710noreply@blogger.comtag:blogger.com,1999:blog-8807546545325587932.post-34291026608994194152013-01-21T16:20:29.217-05:002013-01-21T16:20:29.217-05:00Thanks Dave! Just to clarify, are you suggesting t...Thanks Dave! Just to clarify, are you suggesting that one should add the Source equipment AFTER the System has already been created using the Targets? In other words, select all the Targets, create the System, finish sketch mode, then edit the System and add the Source? Just want to make sure I&#39;m reading this correctly since it&#39;s an extra step. Thanks again!Tim Kramerhttp://www.blogger.com/profile/09813143092231859460noreply@blogger.comtag:blogger.com,1999:blog-8807546545325587932.post-52656479477476867202013-01-16T04:01:38.717-05:002013-01-16T04:01:38.717-05:00This comment has been removed by a blog administrator.Harveyhttp://www.blogger.com/profile/05474332245801339695noreply@blogger.com